Health Insurance
Special Enrollment Period (SEP)
An SEP gives you typically 60 days after a qualifying life event to get health coverage without waiting for open enrollment.
Last reviewed: May 2026 · Editorial methodology
Definition
A Special Enrollment Period (SEP) is a time-limited opportunity to enroll in health insurance or change plans outside of the standard Open Enrollment Period. SEPs are triggered by Qualifying Life Events (QLEs) such as losing job-based coverage, getting married, having a child, moving to a new area, or gaining eligibility for marketplace plans. On the ACA marketplace, the SEP window is generally 60 days from the date of the triggering event. Coverage typically begins the first of the month after enrollment, though for births and adoptions coverage may retroact to the event date. Marketplace SEPs may require documentation to verify the qualifying event; failure to provide documentation within the allotted time can result in enrollment being rescinded. Medicare also has special enrollment periods triggered by events such as losing employer group health coverage or moving out of a Medicare Advantage plan's service area. Employer-sponsored plans follow ERISA rules for SEPs, which parallel but do not always match ACA marketplace timelines.
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Cover Forge USA Editorial Team
Editorial Lead
This article was researched and written by the Cover Forge USA editorial team against federal sources (NAIC, CMS, FEMA, DOL, SSA, state DOIs) and standard policy forms. Bylines organize content by topic — they do not assert individual licensure. See our editorial-policy for details.
Reviewed 2026-06-14
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